Spraying-machine.



I. G. HODGSON.

SPRAYING MACHINE.

. APPLICATION FILED MAY 5. 1913- Ilmgm Patented May 29,191?.

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SPRAYING MACHINE.

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JOHN G. HODGSON, 0F MAYWOOI), ILLINOIS, ASSIGNOR TO AMERICAN CANCOMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

SPRAYING-MACHINE.

Speccation of Letters Patent.

Patented May 2Q), 191W..

To all whom it may concern.'

Be it known that I, JOHN G. HoDGsoN,

a citizen of the United States, residing in V Maywood, in the county ofCook and State of Illinois, have invented a new and useful Improvementin Spraying-Machines, of which the following is a specification.

This invention relates to improvements in spraying machines, andmoreparticularly to machines for spraying the interiors of cans.

One object of the invention is to provide a machine for spraying lacqueror other coating material on the walls of cans and -can ends, soarranged that the spraying is 'a plurality of cans simultaneously, thearrangement being such that several of the parts may be duplicated, thusin e'ect multiplying the capacity of the machine.

A still further object of the invention is to provide novel sprayingdevices, automatically controlled by the article being sprayed, saiddevices being adjustable as to height, inclination, and quality andquantity of the spray.

The inventioniurthermore consists in the improvements in the parts anddevices and in the novel combinations of the parts and devices as hereinshown, described or claimed.

In the drawing forming a part oit this specification, Figure 1 is a partsectional, part elevational view of a spraying machine embodying myimprovements, and Fig. 2 is a top plan view of the structure shown inFig. 1, and illustrating also an additional set of spraying devices inorder to increase the capacity of the machine.

In said drawing, the base of the machine is designatedby the reference10, and on said base are secured a standard 11 for the turret,hereinafter described, and a standard 12 for supporting the sprayingdevices A.

Mounted in the standard 11 is a vertical, intermittently rotatable shaft13, driven by gears 14 and 15, the latter being secured to a horizontalshaft 16 intermittently rotated as by the Geneva stop motion 17, 18, thelatter member of the Geneva motion being mounted on a horizontal shaft19 driven by gear 2O and pinion 21, the latter being secured to thepower shaft 22 driven from any suitable source of power (not shown) asby means of the pulley 23. Secured to the upper end of the shaft 13 is acarrier 24 on which are mounted a plurality of chuck holding brackets25, each chuck holding bracket having rotatably mounted therein, amagnetized chuck 26 having a spindle 27 to which is secured a bevelpinion 28, all of said bevel pinions 28 being constantly rotated by abevel gear 29 loosely rotatably mounted on the shaft 13 and driven bythe bevel gear 30 and 31, the latter being secured to the inner end ofthe shaft 22. The

-aXis of each chuck is inclined from the vertical, whereby the runningof the liquid coating down to the bottom of the can is retarded while itis being distributed around the cylindrical walls of the can by therotation of the chuck. Such inclination of the can, together with itsaXial rotation, also promotes the distribution of the coating y evenlyover the bottom of the can. Each chuck 26, as more clearlyshown in Fig.1, is recessed to thereby receive and properly center the cans 32 orother articles to be operated upon, and slidably mounted in each of thechuck spindles 27 is an ejector or knockout rod 33 operated by astationary cam 34 so located that the cans are ejected after thespraying operation has taken place.

Adjustably mounted in the standard 12, as by means of set screws 35 is arod 36 hav ing pivotally mounted thereon, at its upper end, a supportingbracket 37, having arms 37a and 37". The lower arm 37 a of the bracket37 has pivotally andl adjustably secured thereto, a lacquer supply tank38 adapted to be supplied with the lacquer or other coating materialthrough an inlet pipe 39. As shown in Fig. 2, the tank 38 is formed onthe arc of a circle and carries a pair of adjustably mounted tubes 40which have their lower ends projecting down into the lacquer, and theirupper ends arranged in proximity to compressed air pipes 41, the latterbeing adjustably mounted in brackets 42 pivotally and adjustably mountedon the upper arm 37b of they bracket 37. The pipes 41 are connected toany suitable source of compressed air (not shown) and the supply of airin each pipe 41 is controlled by a.

valve 43, lever 44, link 45 and controlling lever 46, the latter at itsinner end carrying a roller 47 adapted to be engaged and operated by thecans or other vessels against the action of a spring 48. Any sliding ofthe can on the magnetized chuck surface, which might be caused by theresistance of the spring 48 or the valve mechanism, is prevented by asuitable stop, which is in this instance formed by the flange of thechuck 26, within which flange the can is seated. Each controlling lever46 is pivotally mounted on a stationary arm 49 secured to the bracket37.

In Fig. 2, two sets of spraying devices are shown suitably `arrangedaround the circumference of the rotating carrier 24, so that both setsof spraying devices may operate simultaneously on different sets ofcans, the latter being fed preferably by hand on to the chucks by twooperators just prior to the chucks reaching the spraying devices.

The number of chucks mounted Aon the carrier 24, as shown in thedrawing, is 16, and the Geneva. stop motion is so arranged that thecarrier is given an eighth' of a revolution between stops so that twocans will be sprayed simultaneously. But it will be understood that bychanging the Geneva stop so as to give the carrier only onesixteenth ofa revolution for each stop, each can would be sprayed twice, and as willbe apparent to those skilled in the art, the number of cans sprayed atone time or the number of coatings applied to each can, may be varied asdesired by either diminishing lor increasing the number of sprayingdevices, and by changing the Geneva stop mo- In some instances it mightalso be tion.

desirable to spray the articles carried by the chucks by using handoperated spraying devices.

As more clearly shown in Fig. 1, the cans are presented to the sprayingdevices at an inclination to the vertical, thereby insuring a uniformapplication of the spray over the entire inner walls ofthe cans whichare constantly rotated while the spray is being applied, and byadjusting the parts of thel spraying devices either as to height,inclination or relative positions of the lacquer pipes and air pipes 40and 41 respectively, thesize and quality .varied as desired.

lhe verticall adjustment of the spraying device bodily by means of thesliding rod 36 accommodates the machine to cans of di'erent height, andalso, by regulating the diameter ofthe spray where it impinges, to cansof different diameters of opening. The sprayitself is properly producedby adjustvof the spray may be` Lamer? ing the angle of the pipes 40, 41to each other, which is done by turning one or both of the angularlyadjustable extremities of the bracket arms 37a, 37"; and the spray isfurther regulated by longitudinally adjusting the pipe 40 toward or fromthe axis of the pipe 41 and by similarly adjusting the pipe 41 toward 0rfrom the axis of the pipe 40. After such bodily adjustment andregulation of the spray, the ,spray as a whole is focused on the can byan up or down angular adjustment of the bracket 37.

Although I have herein shown and described what l now consider thepreferred embodiment of my improvements, yet it will be obvious to thoseskilled in the art, that various changes and modifications may be madewithout departing from the spirit of the invention, and all such changesand modifications are contemplated as come within the' scope of theclaims appended hereto.

l claim 1. A spraying machine for cans and other articles includlng, indombination: a carrier rotatable about an axis and having a pluralityof' rotatable chucks mounted described including, incombination: acarrier intermittently rotatable about a vertical axis; a plurality ofrotatable chucks on inclinedaxes carried by said carrier; and

a stationary spraying device located adjacent the carrier 4and .to whicharticles carried by said chucks are presented successively;substantially as specified.4

' 3. A spraying machine of the characterl described including, incombination: a carrierrotatable about a vertical axis; a plu- -rality ofrotatable chucks carried by said carrier, veach chuck being magnetizedand constantly inclined relatively to the verv tical; and av stationaryspraying device to whichthe articles carriedby said chucks, are adaptedto be presented, substantially as specified. V

4. A spraying machine` 'of the character ing a plurality of rotatablechucks-.mounted thereon each having means for securely andremovablyholding acan in place and enabling 'the same to actuate the spraying defvice; a stationary spraying device to which thearticles are broughtsuccessively by the described including, in combination: a carr -rierrotatable about a verticall am'svand hav-l carried by said carrier eachhaving means for securely and removably holding a can in yplace toactuate the spraying device; a stationary spraying device locatedadjacent the carrier and to which articles carried by said chucks arepresented successively; and can-governed means controlling the operationof said spraying device, substantially as specified.

6. A spraying machine of the character described including, incombination: an intermittently rotatable carrier; a plurality ofrotatable magnetized chucks carried by said carrier and having means forinclosing a part of the` can and holding the can from lateraldisplacement; a stationary spraying device arranged adjacent saidcarrier in recessed and magnetized chucks carried by front of which thearticles to be sprayed are brought When the carrier is at rest; andautomatically operable means for controlling the operation of saidspraying device, substantially as specied.

spraying machine of the character described including, in combination:la carrier intermittently rotatable about a vertical axis; `a pluralityof rotatable recessed and magnetized chucks carried by said carrier; astationary spraying device to Which the articles carried by said chucksare brought to be coated comprising a longitudinally adjustable liquidpipe anda longitudinally and angularly adjustable air pipe; and meansfor vertically adjusting said spraying device, substantially asspecified.

8. A spraying machine of the character described including, incombination: a carrier intermittently -rotating about a vertical axis; aplurality of continuously rotatable said carrier; a stationary sprayingdevice comprising a longitudinally adjustable liquid pipe and alongitudinally and angularly adjustable air pipe; angularly adjustingsaid spraying device, substantially as specified.

9. Aspraying machine of the characterV described-including, incombination: a carrier rotatable about a vertical axis; a plurality ofrotatable recessed and magnetized chucks carried thereby; -a verticallyadjustable stationary spraying device to Which the articles carried bysaid chucks are presented successively comprising a longitudinally ad-'.-justable liquid pipev and a longitudinally .means for angularlyadjusting the spraying and angularly adjustable air pipe; and

device, substantially as speclfied.

10. A spraylng machlne of the character and means for,

described including, in combination: a carrier rotatable about avertical axis having a plurality of chuck holding brackets securedthereto; magnetized chucks having means to engage the side of the canand rotatably mounted in said brackets; means `for rotating the chuckson said carrier, said means including a bevel pinion carried by each ofsaid chucks and a common rotatable bevel gear meshing with said pinions;and means for rotating said carrier, substantially as specified.

11. A spraying machine having a vspraying device comprising a tank, abracket on which said tank is adjustably mounted, a compressed air pipe,said pipe being adjustable longitudinally and angularly, a pipeprojecting Within said tank and having its outer end placed adjacent theend -of the air pipe, and means engageable by the article being sprayedfor controlling the supply of air through the air pipe, substantially asspecified.

12. In a spraying machine, a spraying device including a standard, asupporting bracket vertically adjustably mounted in said standard, atank carried by said bracket, a compressed air pipe carried by saidbracket and 'adjustable longitudinally and angularly, and automaticallyoperated means engageable by the article being sprayed for controlling`the supply of air in said pipe, substantially as specified.

13. In a spraying machine, a spraying device comprising a supportingbracket, a supply tank angularly, adjustably mounted on said bracket andhaving a longitudinally adjustable liquid pipe, a compressed air pipeangularly adjustably mounted on said bracket, and automatically operatedmeans engageable by the article being sprayed for controlling the airsupply in said pipe, substantially as specified.

14. A spraying machine of the character described including, incombination: a carrier intermittently rotatable about a vertical axis; aplurality of chucks rotatably mountspraymg devices arranged aroundthe`periphery of said carrier and simultaneously spraying alternatecans, substantially as speciiied; and means for actuating said carrierto cause alternate cans to pass one of said spraying devices Withoutintermission.

15. In a can-spraying machine, in combination: an intermittentlyrotatable carrier; can-holding rotary chucks on said carrier the axes ofwhich are 4inclined from the vertical; and an intermittently actingspraying device having its line of delivery arranged to enter the openend of the can at an angle to the axis of the can.

16. In a can-spraying machine, in combination: an intermittentlyrotatable carrier;

the axes of which are inclined from the ver* tical; and anintermittently acting spraying device having its line of deliveryarranged to enter the open end of the can at an angle to the axis of thecan, the said chucks being magnetized to hold the cans to their facesand having means to engage the sides of the cans to hold them fromlateral displacement.

17. ln a can-spraying machine, in combination: a rotatablecarrier havingarranged thereon at certain intervals a series of rotary can-holdingchucks; a plurality of spraying devices each arranged t0 spray a canwhen the latter is brought opposite to it, the said devices acting onalternate cans; and means for turning the said carrier step by step,each of which steps is equal to the interval between the rst and lastsprayed cans plus the interval between two contiguous cans, eachalternate can passing without pause in front of one spraying device, andthe other alternate cans passing without pause in front of the otherspraying device.-

18. A can spraying machine including, in combination: a carrierrotatable about a vernam/cir tical axis and having a plurality ofrotatable chucks mounted thereon; a spraying device to which the cansare brought successively by the movement of the carrier and its chucks;a spray controlling valve having means whereby it is actuated by thesides of the cans as the latter arrive opposite to the spraying device;and holding means on the chucks whereby the cans are removably xedthereonl and enabled to operate said valve and actuating means.

19. ln a spraying machine of the character described, for coating cansand other articles, in combination: a carrier rotatable about an axis;means for intermittently rotating said carrier; a plurality of rotatablechucks mounted on said carrier and having their axes outwardly inclined;each chuck having a recess in which a can is adapted to be securelyseated; and means whereby said chucks are magnetized to hold the base ofthe can within said recess.

JOHN Gr. HODGSON.

Witnesses:

WEJJIAM A. GEIGER, ESTHER ABRAMS.

